Probability Review

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown
What is the probability of selecting a brown candy?

• 2/18
• 1/9
• 2/20
• 1/10

A spinner has 8 sections: 2 purple, 2 yellow, 3 blue, and 1 red.
What is the probability of spinning and landing on a color that is not yellow?

• P(not yellow) = 6/8
• P(not yellow) = 2/8
• P(not yellow) = 6

How many outcomes? You can choose from 4 different ice cream flavors and 2 toppings. 

• 12
• 8
• 4
• 6

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced. P(purple then black)

• 1/18
• 2/5
• 3/7
• 4/9

What is the probability of spinning an even number?

• 16 2/3%

• 33 1/3%

• 50%

• 75%

If 33% of the students at Harnett Central have a pet, then what is the probability of the complement of this event?

• 33%
• 77%
• 67%
• 50%

A coin is tossed and a number cube is rolled.  What is the probability that the coin shows tails and the number cube shows a six?

• 1/24
• 1/2
• 1/12
• 1/4

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

A summer camp offers different choices at lunch. How many different lunch combinations consisting of 1 main dish, 1 side dish, and 1 drink are possible?

• 18
• 27
• 9
• 8

A box contains 3 black pens, 7 blue pens, and 5 red pens. Without looking, Juan randomly picks a red pen out of the box. If he chooses another pen out of the box without replacing the first one, what is the probability that he will pick a red pen both times?

• 2/21
• 1/9
• 5/42
• 9/29

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